class_docstr: A Phoenix Trial wrapper. Stores trial metadata.
code: def __init__(self, trial_data):
      if isinstance(trial_data, dict):
          # mlmd (json dictionary)
          self._internal_trial_representation = _json_to_python_object(
              trial_data
          )
  
file_path: model_search/model_search/metadata/trial.py
imports: import collections
  import json
label_desc: Use image node_id 1 to create a new Trial object from inherited base classes: object with example: obj = Trial(trial_data)